document some additional important changes

diff --git a/WHATSNEW b/WHATSNEW
index 6d4966e46fa867dbe9549e2799355e44634f5ee8..519b77871a992f4db0320a9cd577c9a0f2d0f490 100644 (file)
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -60,7 +60,8 @@ added syscall wrappers for the linux inotify interface.
 
 malloc(0) now returns a non-null pointer.
 
-fixed printf %n specifier (again).
+fixed printf %n specifier (again), pthread_once (it was always
+hanging), and non-default-type mutex behavior.
 
 added ucontext/sigcontext support in headers to facilitate building
 libgcc with dwarf2 unwind support, and possibly other low-level tools.